Limewire is being sued by the riaa but, but I haven't heard/read much else about it. If LW fights it, the lawsuit will probably drag on for a while. Even if they shut down LimeWire LLC, the programs that everyone has on their computers will still work. There isn't a central server to shut down. Each computer acts as a server. Just keep a copy of the LW installer somewhere on you computer when you ugrade to the next release. Just in case they would write something into a future release.
I think buying Pro is money well spent. I have Pro and plan to continue purchasing it.
If LW does go south, then try
FrostWire. Read about at the
FrostWire Forum.